Hello Apple Developer Community, I need technical assistance with a recurring StoreKit subscription issue affecting my iOS application, DRIVER BRAIN. Application details: App: DRIVER BRAIN Bundle ID: com.oney.driverbrain Subscription Product ID: com.oney.driverbrain.premium.monthly Subscription price: $9.99 USD per month Introductory offer: 3-day free trial Development framework: Flutter (iOS) Problem: During Apple's App Review, the subscription product is not being returned by StoreKit. The purchase screen displays the message: "Apple has not returned the subscription yet." As a result, App Review cannot complete the subscription purchase flow, and the application has been rejected under Guideline 2.1 – App Completeness. Checks already completed: Subscription Product ID verified. Bundle ID verified. In-App Purchase capability enabled. Three-day introductory trial configured in App Store Connect. Paid Apps Agreement active. Banking and tax information active. Subscription availability reviewed. Sandbox account configuration and physical iPhone testing performed. Despite these checks, Apple's reviewers continue to encounter the subscription loading problem. I would appreciate assistance from Apple's StoreKit engineers or experienced developers with the following questions: Why might an auto-renewable subscription product not be returned during App Review? How can I identify whether the issue originates in StoreKit product retrieval, App Store Connect configuration, or the review environment? Which StoreKit diagnostic logs or code excerpts would help identify the root cause? What is the recommended technical solution to ensure the subscription product loads reliably during App Review? I am looking for a definitive diagnosis rather than repeating configuration checks that have already been completed. Thank you for your assistance.

Hello Apple Developer Community, I need technical assistance with a persistent StoreKit subscription issue in my iOS app, DRIVER BRAIN. App details: Bundle ID: com.oney.driverbrain Subscription Product ID: com.oney.driverbrain.premium.monthly Price: $9.99 USD per month Introductory offer: 3-day free trial Problem: During App Review, Apple has repeatedly reported that the subscription product is not returned by StoreKit. The paywall displays the message "Apple has not returned the subscription yet," preventing reviewers from purchasing or accessing the application. We reproduced this issue on a physical iPhone using a TestFlight build. However, when testing locally through Xcode with the DriverBrain.storekit configuration file, the subscription and introductory offer appeared correctly, and the purchase test succeeded. Checks already performed: Subscription Product ID matches the application configuration. In-App Purchase capability is enabled. Paid Apps Agreement, banking, and tax information are active. Subscription pricing and 3-day introductory offer are configured in App Store Connect. Physical-device, sandbox, and TestFlight testing have been performed. Multiple App Review submissions have encountered this issue. Questions for Apple engineers: What could cause StoreKit to return zero subscription products in TestFlight or App Review while the local StoreKit configuration works? Could subscription availability, App Store Connect configuration, or App Review environment issues explain this behavior? Which specific StoreKit diagnostics or logs should we collect to identify the root cause? We would appreciate technical guidance to isolate this issue rather than repeat configuration checks already completed. Thank you for your assistance.